Electric car-brake



(No Model.)

P. V. GONOVER.

ELECTRIC CAE BRAKE. No. 265,023. Patented Sept. 26, 1882.

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UNITEDA STATES 'PATENT FFICE.-

PHILIP v ,ooNovER1 on IVALDE, TEXAS.

ELECTRIC CAR-BRAKE.

SPECIFICATION forming part of Letrs Patent No. 265,023, dated September 26, 1882.

Application filed August 8, 1882.

, thc'applying and releasing of car-brakes by means of electricity.

The invention consists in a combination', with a friction-wheel mounted ou the car-axle, of a friction-wheel mounted on a laterally-adjustable vertical shaft, provided atits upper end with a beveled cog-wheel, engaging with a'beveled cog-wheelon a horizontal shaft jour naled in the under side oft-hecar-iioor, on which horizontal shaft is loosely mounted a worm, which engages with a worm-wheel mounted on the shaft to which the brake-chain is attached,

vc hereby when this worm is locked on the shaftA by suitable devices and the shaft is rotated the brakechain `will be wound on the shaft of the worm-wheel, and the brakes will be applied.

The invention further consists in a sliding sleeve mounted on the horizontal shaft on the under side of the car-floor in such a manner that it can slide on the same and turn with it, which sleeve is provided with radial arms, which are pressed against the annular flange at `the end of the worm and en gage with a stud on this iange, thcrebylocking the worm to this sleeve, which sleeve is connected with a fork or rod, passing into a helix, whereby when the circuit of this helix is closed the rod will be drawn into the helix and the clutchsleeve will be drawn from the end of the worm,

which is thus released.

The invention also consists in the combination, with a cog-.wheel on the axle, of a rack adaptedto be pressed against this cog-wheel by a lever acted upon by a rod passing into a helix, which rack has its upper end pivoted to (No model.)

in which similar letters of reference indicate corresponding parts in all the figures.

` Figure lis a plan view of the under side of a car provided with my improved electric carbrake. Fig. 2 is a longitudinal sectional elevation of the same ou thelinexw, Fig. 1. Fig. 3 is a detail cross-sectional elevation of the same on line y y, Fig. 1.

0n the car-axle A, which is journaled in the truck in the usual manner, is mounted. a vertical friction-wheel, B. In a hollow standard, C, projecting from the under side of the caroor A', a vertical shaft, C', is held loosely in such a manner thatit can be' moved laterally, and on the lower end of this shaftasmallfriction-wheel, D, is rigidly mounted, which can he pressed against the side of the friction- Wheel B. On the upper end ofthe shaft C' a beveled cog-wheel, E, is mounted, which engages Wit-h a beveled cog-Wheel, E', mounted on ahorizontal shaft,F,jonrnaled on the under side of the car-hoor A. A cog-wheel, G, is rigidly mounted on the car-axle A, preferably near one end ofthe same. pivoted at 'its upper end to the outer end of a lever, I, which is pivoted in thellollow standard C, projecting `from the under side of the car-floor, and which lever I has its innler end provided with a slightly-rounded head,'l',

fwhich rests against a boxing or plate, J, rest ing against the shaft C'. The lever K, pivoted to an arm, K', of the standard C, is provided at its outer end with a recessed plate, L, fitting against the outer surface of the rack-bar H, and to its upper end is pivoted a rod, M, which passes through a helix, N, held to the under side of the'car and connected with a battery. On the horizontal shaft F a worm, O, is loosely mounted, which engages With a worm-wheel, P, rigidly mounted on a shaft, Q, journaled in standards Q', projecting from the bottom of the car, to which shaft Q the brake-chain .R is attached. The worm O is provided at the end farthest from the caraxle with an annular ange, O', from which a 9 serted between the sleeve and the shaft. At

A rack-bar, H, is i IOO j pendently of the Sallie.

the end toward the flange O of the worm O this sleeve S is provided with a series of arms, d, which are preferably arranged radially. A spiral spring, T, surrounding the shaft F, presses the sleeve S against the tiange O of the worm O. The sleeve S is provided aft the end opposite the one provided with the arms d with an annular tiange, S', which passes into the notched ends of the shanks of a fork, U, attached to a rod, W, passing through a helix, V, held to the under side of the cart'loor and connected with a battery.

The operation is as follows: 1f the brakes are to be applied, the circuit ofthe helixN is closed, and the rod M will be drawn into the helix, u hereby the lower end ofthe lever K will press the rack H against the cog-wheel Gr, and this rack will be moved upward or downward, according to the direction in which the car is running. If this rack H is moved upward or downward, the head I of the lever I will press the shaft G toward the friction-wheel B, causing the friction-wheel D on the lower end of this shaft C to be rotated by the friction-wheel B on the shaft A, whereby rotation of the beveled cog-wheels E and E is caused, and, as the beveled cog-wheel E is mounted on the shaf't F, this shatt will be rotated, and will rotate the sleeve S thereon. As the radial arms d ofthis sleeve S are pressed against-the ange O at the end ofthe worm 0, which iiange is provided with a stud, a, this worm will be rotated by the shaft F, and in lturn will rotate the worin-wheel P, mounted on the shaft Q, whereby the brake-chain R will be wound on the shaft Q, and the brakes will be applied. remainslocked in this position. It' the brake is to be released, the circuit of the helix V` is closed, whereby the rod W will be drawn into this helix, and the sleeve S will be withdrawn from the end of the worm, which is thus released from the shat't Fand is rotated inde- As soon as this worm O is released the brakes are loosened. The batteries of thc helices N and Vean be located in the engine, and can be connected with the several ears, so that the brakes can be applied from any part of the train, as may be desired.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In an electric brake, the-combination, with a friction-wheel mounted on the axle, of a friction-wheel mounted on an adjustable shaft, connected by suitable gearing with the shaft to which the brake-chain is attached, a cog-wheel mounted on the axle, and a rack hung on a lever, adapted to act on the adjustable shaft carrying the friction-wheel, which is to be pressed against the friction-wheel on the axle, substantially as herein shown and described, and for the purpose set forth.

2. 1n an electric brake, the combination,with the axle A, of the friction-wheel B, mounted thereon, the cog-wheel G, the rack H, the 1e- The brake,

ver I, pivoted in the hollow standard C, projecting from the under side of the car-floor, the laterally-adjustable shaft C', the frictionwheel D on the lower end of the same, the beveled cog-Wheel E at the upper end ot' the same, engaging with a cog-wheel, E', on a shaft connected by suitable gearing with a brake-chain, the lever K, the rod M, and the helix N, substantially as herein shown anddcscribed, and for the purpose set forth.

3. In an electric brake, thecombination, with the axle A, of the friction-wheel B, mounted thereion, the cog-wheel G, the rack H, the lever I, pivotedin a hollow standard, C, projecting from the under side of the car-floor, the rounded head 1 at the inner end of this lever I, the boxing J, the laterally-mijustable shaft C', the friction-wheel I) on the lower end ot' the same, the beveled cog-wheel AE at the upper end of the same, engaging' with the beveled cog-wheel E on the shaft, connected by suitable gearing with the brakes, the lever K, the rod M, and the helix N, substantially as herein shown aud described, and for the purpose set forth.

4. In an electricbra ke,the combination, with the axle A, of the horizontal shaft F, journaled to the under side of the car, the worm 0, loosely mounted thereon, the worm-wheel P, mounted on a shaft, Q, the brake-chain R, attached to the shaft Q, vthe devices for looking the worm O on the shaft F, and of the devices for operating the shaft F from the car-axle A when desired, substantially as herein shown and described, and for the purpose set forth.

5. In an electric brake, the combination, with the car-axle A, of the horizontal shaft F, the

worm O, loosely mounted thereon, and provided at one end with an annular flange, 0, provided with projecting studs a, the sliding sleeve S, held on the shaft F to rotate with the same, and provided with radial arms d, the wormwheel P, mounted on the shaft Q, the brakechain R, attached to the shaft Q, the devicesl for engaging the sleeve S with the worm O, and the devices for operating the shaftF from the car-axle when desired, substantially as herein shown and described, and for the purpose setforth.-

6. In an electric brake, the combination, with the car-axle A, of the horizontal shaft F, the

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